ICES CM documents authored by IMR scientists (1949-2011): Recent submissions
Now showing items 1241-1260 of 3138
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Preliminary report from a study of species composition, size composition and distribution of the fish in a fjord of western Norway based on regularly conducted experimental fishing and catch statistics during one year
(ICES CM Documents;1986/G:70, Working paper, 1986)This paper is a contribution to the research program investigating the possibility of building up the local cod population in Masfjorden, a fjord in the westen Norway, by releasing large numbers of artificially produced ... -
Relationship in distribution of blue whiting and hydrographic conditions in the Norwegian Sea during summer, 1980 -85
(ICES CM Documents;1986/H:54, Working paper, 1986)During the summer period in the Norwegian Sea the stock of blue whiting was found to have decreased considerably from 1980 to 1983. Although the stock increased again, the adult part of it continued to decrease and in ... -
Report of the Working Group on North Atlantic Salmon [Copenhagen, 17 -26 March, 1986]
(ICES CM Documents;1986/Assess:17, Working paper, 1986) -
Preliminary results from tests using a high-frequency sonar as trawl-sonde
(ICES CM Documents;1986/B:37, Working paper, 1986)A high-frequency, short-range sonar is tested for trawl-geometry measurements on pelagic and bottom trawls. The sonar was operated on a standard, coaxial trawl sonde cable, and produced excellent images of the trawl ... -
A possible reorganization of the assessments in the northern part of the ICES area
(ICES CM Documents;1985/Assess:21, Working paper, 1985) -
Digital representation of split-beam-transducer beam patterns
(ICES CM Documents;1986/B:2, Working paper, 1986)The farfield beam pattern of each of two different split-beam transducers is computed and represented in the axial region by a finite number of constant levels. The accuracy of representation is determined as a function ... -
Use of live freshwater zooplankton for startfeeding Atlantic salmon in net pens
(ICES CM Documents;1985/F:16, Working paper, 1985)The experiment was carried out 1984 in a coastal lake near Bergen, Norway. A total of four (later doubled) groups of Atlantic salmon (Salmo salar) fry were startfed with live zooplankton delivered by a pump. Small ... -
Report of the Arctic Fisheries Working Group [Copenhagen, 26 September -3 October, 1984]
(ICES CM Documents;1985/Assess:2, Working paper, 1984) -
The influence of a stimulated transportation of newly fertilized Atlantic salmon eggs on mortality to the eyed stage
(ICES CM Documents;1985/F:29, Working paper, 1985)Transport of newly fertilized eggs has often resulted in severe mortality of the eggs during incubation to the eyed stage. To investigate the effect of transport on mortality, pooled eggs from several females were handled ... -
Report of the Ad Hoc Sub-group on Trace Organic Compounds under the Marine Chemistry Working Group [Copenhagen, 24 -25 February, 1985]
(ICES CM Documents;1985/E:7, Working paper, 1985) -
Physical stress on halibut larvae
(ICES CM Documents;1986/F:18, Working paper, 1986)Halibut larvae were exposed to physical stress in the form of different levels of airation. Survival rate, development, dry weight, RNA, DNA and protein were measured. At the end of the experiment the larvae exposed to ... -
Tilt angles of schooling penned saithe
(ICES CM Documents;1985/B:26, Working paper, 1985)Saithe (Pollachius virens) of nearly uniform 32 cm length have been photographically observed during the daytime in an apparently free-swimming and schooling state in a pen of dimensions 90 m length, 10 m width, and 7 ... -
Report of the Marine Chemistry Working Group [Helsinki, 18 -21 February, 1986]
(ICES CM Documents;1986/C:1, Working paper, 1986) -
Norwegian sprat investigation in the North Sea in later years
(ICES CM Documents;1984/H:37, Working paper, 1984)The variation in abundance and distribution of sprat during November 1979, January 1980, 1981 and 1982 is studied in relation to environmental factors. The main abundance of sprat was observed in waters with salinity ... -
Experiences using the ES-400, split-beam echo sounder, with special reference to the single-fish recognition criterion
(ICES CM Documents;1986/B:38, Working paper, 1986)Realistic estimates of in situ target strength can be made when the fish concentrations are acoustically resolved into single individuals. In the split-beam echo sounder, as in all other systems available for in situ ... -
Increased growth rate in Atlantic salmon parr by using a two-colour diet
(ICES CM Documents;1985/F:17, Working paper, 1985)Fishes hunting by sight are known to pay a cost of confusion when faced with high densities of uniform food particles. In such instances, awareness of other stimuli reduces feeding efficiency such that the fishes prefer ... -
Report of the ICES Workshop on the use of pathology in studies of the effects of contaminants [Dublin, 21 -22 April, 1986]
(ICES CM Documents;1986/E:40, Working paper, 1986) -
Results of stratified trawl surveys for shrimps (Pandalus borealis) in the Barents Sea in May and in the Svalbard region in July -August 1985
(ICES CM Documents;1985/K:50, Working paper, 1985)The results of a stratified random bottom trawl survey with R/V "Michael Sars" in May 1985 in the Barents Sea between N71°30' N75°30' and between E25°30' - N35°30' is described in this report. It also describes the results ... -
Production experiment of halibut fry in large enclosed water columns
(ICES CM Documents;1986/F:19, Working paper, 1986)Halibut eggs were hatched in 21 floating enclosures and the larvae stored through the yolk sac period under 5 different environmental conditions, each with 4 parallels. The effect of the different environments was ... -
Report of the Workshop on the International Acoustic Surveys of Blue Whiting in the Norwegian Sea [Bergen, 6 -11 May, 1985]
(ICES CM Documents;1985/H:6, Working paper, 1985)